Which of the following is an early warning sign of colorectal cancer?
a. GERD
b. celiac disease
c. diarrhea
d. colon polyps
e. diverticulitis
ANSWER: d
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Connor decides to celebrate his 21st birthday by drinking a few beers at a local sports bar. After a while, Connor notices that he is making many more trips to the men’s room than the week before, when he drank similar amounts of carbonated water. Why is that?
A. Alcohol stimulates secretion of ions into the nephron and water follows by osmosis. B. Alcohol stimulates filtration of the blood plasma by the glomeruli. C. Alcohol inhibits the secretion of ADH by the posterior pituitary gland, thereby decreasing water reabsorption. D. Alcohol inhibits reabsorption of sugars, amino acids and other small metabolites, which decreases reabsorption of water. E. Alcohol stimulates the insertion of aquaporins into the plasma membranes of cells that line the collecting ducts, thereby decreasing water reabsorption. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about the production of urine? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In genomic libraries:
a. naturally and arti?cially selected plants are genetically engineered. b. DNA fragments are stored in plasmids. c. a virus is used to transform human cells. d. none of the above are done.
All of the following are fungi except:
A) molds. B) Paramecium. C) Penicillium. D) yeasts.
Put the following steps of DNA replication in chronological order.
1. Single-stranded binding proteins attach to DNA strands. 2. An RNA primer is created. 3. Primase binds to the origin. 4. DNA polymerase begins to synthesize DNA 5. Hydrogen bonds between base pairs of antiparallel strands are broken. A. 5, 1, 3, 2, 4 B. 3, 1, 5, 4, 2 C. 1, 5, 3, 4, 2 D. 3, 5, 1, 2, 4